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Heart|Natural|GIA

0.73ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 1518428055

Certificate GIA 1518428055

Diamond specifications and retailer prices

From $1,122 AUD
$786 USD
As of November 2, 2026
Save $1,174 AUD (51%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,931 AUD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 0.73ct natural heart diamond

This 0.73ct natural heart sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1518428055. Listed at 17 retailers as of November 1, 2026, with a 105% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.73
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1518428055
Dimensions5.42 × 6.43 × 3.76 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
5.42 mm6.43 mm0.73 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1518428055
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,465 AUD|Low: $1,122 AUD|High: $2,323 AUD|Avg: $1,540 AUD|+4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 5$1,122 AUD
Retailer 11$1,156 AUD
Retailer 4$1,254 AUD
Retailer 9$1,269 AUD
Retailer 2$1,301 AUD
Retailer 1$1,465 AUD
Retailer 10$1,484 AUD
Retailer 8$1,530 AUD
Retailer 3$1,600 AUD
Retailer 7$1,872 AUD
Retailer 12$1,885 AUD
Retailer 6$2,296 AUD

42 data points across 12 retailers

17 retailers$1,122 AUD to $2,296 AUD

A
Cheapest Retailer
-
$1,122 AUD
$786 USD
B+
Retailer 2
-
$1,156 AUD
$810 USD
View
Final sale: no returns
B+
Retailer 3
-
$1,254 AUD
$879 USD
View
B+
Retailer 4
-
$1,254 AUD
$879 USD
View
B+
Retailer 5
-
$1,269 AUD
$889 USD
View
B+
Retailer 6
-
$1,299 AUD
SGD 1,230 SGD
View
B+
Retailer 7
-
$1,301 AUD
$912 USD
View
B+
Retailer 8
-
$1,444 AUD
$1,012 USD
View
B+
Retailer 9
-
$1,447 AUD
$1,014 USD
View
B+
Retailer 10
-
$1,465 AUD
£808 GBP
View
B
Retailer 11
-
$1,484 AUD
$1,040 USD
View
B+
Retailer 12
-
$1,530 AUD
£844 GBP
View
B
Retailer 13
-
$1,662 AUD
$1,165 USD
View
B
Retailer 14
-
$1,872 AUD
ZAR 21,198 ZAR
View
Retailer 15
-
$1,885 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$2,296 AUD
£1,267 GBP
View
Most Expensive
NZ Jewellers
b407a76a-f82c-4309-94c3-356c85f46276 · Nov 3
$3,931 AUD
$2,755 USD
View
Price under review
16 more retailers have this diamond
Prices start from $1,122 AUDSave up to $1,174 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.73ct Heart
$1,122 AUD